This is for an r26418 image generated locally for the Ubiquiti M900 series.

The signal strength forecast by Radio Mobile is -68 dBm.  The path is
2 Km.  Clearly, there is one tree in the Fresnel zone; if wrong about
the Fresnel zone, the worst case is 300 meters of trees without much
foliage this time of year.

Presuming this is a noise problem, is there a sw tool which will
provide us with the manufacturer|mac address of the device which may
be causing the noise?

The two measurements below were taken 5 to 10 minutes apart.

What possibilities exist other than noise for such a poor signal strength?

THANKS for your help.

kind regards/ldv
-- 
Larry Vaden, CoFounder
Internet Texoma, Inc.
Serving Rural Texomaland Since 1995
We Care About Your Connection!

===Rocket M900 AP

root@OpenWrt:~# iw wlan0 survey dump
Survey data from wlan0
        frequency:                      2412 MHz
        noise:                          -97 dBm
        channel active time:            37 ms
        channel busy time:              13 ms
        channel receive time:           0 ms
        channel transmit time:          0 ms
Survey data from wlan0
        frequency:                      2417 MHz
Survey data from wlan0
        frequency:                      2422 MHz
Survey data from wlan0
        frequency:                      2427 MHz
Survey data from wlan0
        frequency:                      2432 MHz [in use]
        noise:                          -104 dBm
        channel active time:            334750 ms
        channel busy time:              67217 ms
        channel receive time:           3326 ms
        channel transmit time:          438 ms
Survey data from wlan0
        frequency:                      2437 MHz
Survey data from wlan0
        frequency:                      2442 MHz
Survey data from wlan0
        frequency:                      2447 MHz
Survey data from wlan0
        frequency:                      2452 MHz
Survey data from wlan0
        frequency:                      2457 MHz
Survey data from wlan0
        frequency:                      2462 MHz
Survey data from wlan0
        frequency:                      2467 MHz
Survey data from wlan0
        frequency:                      2472 MHz
Survey data from wlan0
        frequency:                      2484 MHz
root@OpenWrt:~#

root@OpenWrt:~# iw wlan0 survey dump
Survey data from wlan0
        frequency:                      2412 MHz
        noise:                          -97 dBm
        channel active time:            37 ms
        channel busy time:              13 ms
        channel receive time:           0 ms
        channel transmit time:          0 ms
Survey data from wlan0
        frequency:                      2417 MHz
Survey data from wlan0
        frequency:                      2422 MHz
Survey data from wlan0
        frequency:                      2427 MHz
Survey data from wlan0
        frequency:                      2432 MHz [in use]
        noise:                          -111 dBm
        channel active time:            1096688 ms
        channel busy time:              205517 ms
        channel receive time:           9205 ms
        channel transmit time:          1250 ms
Survey data from wlan0
        frequency:                      2437 MHz
Survey data from wlan0
        frequency:                      2442 MHz
Survey data from wlan0
        frequency:                      2447 MHz
Survey data from wlan0
        frequency:                      2452 MHz
Survey data from wlan0
        frequency:                      2457 MHz
Survey data from wlan0
        frequency:                      2462 MHz
Survey data from wlan0
        frequency:                      2467 MHz
Survey data from wlan0
        frequency:                      2472 MHz
Survey data from wlan0
        frequency:                      2484 MHz
root@OpenWrt:~#


===Ubiquiti Loco M900 CPE/STA

root@OpenWrt:~# iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"OpenWrt"
          Mode:Managed  Frequency:2.432 GHz  Access Point: 00:15:6D:4E:F1:46
          Bit Rate=1 Mb/s   Tx-Power=27 dBm
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=9/70  Signal level=-101 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:16  Invalid misc:24   Missed beacon:0

root@OpenWrt:~#

root@OpenWrt:~# iwconfig
lo        no wireless extensions.

eth0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:"OpenWrt"
          Mode:Managed  Frequency:2.432 GHz  Access Point: 00:15:6D:4E:F1:46
          Bit Rate=11 Mb/s   Tx-Power=27 dBm
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=9/70  Signal level=-101 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:117  Invalid misc:436   Missed beacon:0
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